While the zoo’s vets and tiger keepers tried to complete their vaccinations and sexing as quickly as possible, the tigers made their displeasure pretty clear.

Zookeeper Paul Kybett said: ‘While I was so excited to see the cubs, I can’t say they were thrilled to see us – but it was actually a really good thing to see them wriggling and hissing at us, they were showing off a perfectly natural behaviour.’

Thankfully the cubs, identified as two boys and a girl, are doing well.

With their sexes determined, the process of choosing a name for the cubs can begin.